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<TITLE>80386 Programmer's Reference Manual -- Opcode NOP</TITLE>
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<H1>NOP -- No Operation</H1>

<PRE>
Opcode  Instruction   Clocks    Description

90      NOP           3         No operation

</PRE>

<H2>Description</H2>

NOP performs no operation. NOP is a one-byte instruction that takes
up space but affects none of the machine context except (E)IP.
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NOP is an alias mnemonic for the <A HREF="XCHG.htm">XCHG</A> (E)AX, (E)AX instruction.

<H2>Flags Affected</H2>

None

<H2>Protected Mode Exceptions</H2>

None

<H2>Real Address Mode Exceptions</H2>

None

<H2>Virtual 8086 Mode Exceptions</H2>

None
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